Tool extractor

In a demolition tool of the type in which compressed air or other force is utilized to cause a chisel or cutting device to enter a working surface with an extraction device mounted on the demolition tool to aid in removal of the chisel from the working surface comprising a pneumatic piston cylinder and rod,

• the improvement which comprises means for supplying a continual source of compressed air to the pneumatic piston cylinder, means for selectively allowing the compressed air to enter the extractor piston cylinder to maintain the rod in contact with the work surface, means for controlling the incoming flow of compressed air to the pneumatic piston cylinder to force the rod against the work surface and extracting the chisel from the work surface, means for allowing air to be released from the pneumatic piston cylinder to allow the chisel to enter the working surface while the rod maintains contact with the working surface, and wherein the upper portion of the extractor piston-cylinder is slidably mounted in a cylindrical extension from the top of the demolition tool, the lower portion of the extractor cylinder is mounted to a second cylindrical extension at the lower end of the demolition tool in a vibration insulating manner, and a clamp portion of the demolition tool secures the extractor cylinder demountably attached in an adjusted position by the use of a keyway cut in the extractor cylinder with a fastener for the clamp acting as the key.